iSpring Whole House Water Filter System w/ Polyphosphate Anti-Scale, GAC KDF, and Carbon Block Water Filters, 3-Stage Water Descaler and Water Filter, Model: WGB32B-KDS - iSpring Water Systems Skip to content
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iSpring WGB32B-KDS Whole House Water Filter System w/ Polyphosphate Anti-Scale, GAC KDF, and Carbon Block Water Filters, 3-Stage Water Descaler and Water Filter

10 total reviews

Regular price $629.99
Sale price $629.99 Regular price $629.99


In stock · Ships within 1–2 business days

iSpring WGB32B-KDS
$629.99

Features

Main

Experience the iSpring Difference

  • High QA

    10X More Siliphos, Premium Quality

    Filled with 10 lbs of premium-grade Siliphos for long-lasting scale protection.

    More and higher-quality media than many alternatives using only 1 lb.

    Filters up to 250,000 gallons or lasts up to 12 months.

  • Tested

    Contaminant Removal That Lasts Longer & Costs Less

    Proven by lab testing to deliver long-lasting performance and superior contaminant reduction, helping reduce replacement costs over time.

    Reduces lead, mercury, chlorine, scale, corrosion, hydrogen sulfide, bad taste, odor, and more.

  • Removal

    Improve Your Quality of Life

    Health & peace of mind: Enjoy cleaner water throughout your home

    Whole-home protection: Filters water for cooking, bathing, and laundry to reduce contaminants

    Plumbing & appliance care: Helps extend the life of pipes and household equipment

    Lower maintenance costs: Cuts down on repairs and replacements

  • Improve

    We listen. We improve.

    Your feedback drives our innovation. iSpring refines every detail based on real user experience — earning 98% positive reviews since mid-2025, far ahead of others.

Hardness
Family

DIY Installation

Support

A Team You Can Count On

Experts

Recommended Setup Order

Installation
Does this system soften water?
No. The WGB32B-KDS whole house water filter prevents scale buildup and protects pipes and appliances from corrosion. It does not remove calcium or magnesium, so water hardness remains unchanged. For softening, see iSpring WCS45KG
What contaminants can this system remove?
Turbidity, visible particulate matter, sand, silt, dirt, rust, chlorine, taste, odor, THMs, VOCs, chemicals, herbicides, heavy metals like lead and mercury, hydrogen sulfide, scale, and corrosion
Can I install this system outdoors?
Install indoors in a well-ventilated area, shielded from wind and rain, away from direct sunlight and heat. Consider water leakage protection. For outdoor installation, ensure insulation for frost, sun, and waterproofing for both unit and pipes.
Can I use this system if my water flow is from left to right?
Yes, you can. However, please note that the inlet/outlet marking on the system is fixed, so you will need to flip the machine head to accommodate this setup. To do this, simply unscrew the screws on the machine head and flip it.

Specifications

  • Minimum Working Pressure: 25 psi
  • Maximum Working Pressure: 80 psi
  • Operating Temperature: 40-100 ºF
  • pH Range: 6 - 9
  • Inlet/Outlet: 1 inch Female NPT

Replacement Water Filters and Accessories

  • Tackles
  • Chlorine, Heavy Metals, Scale
  • Scale, Corrosion
  • Heavy Metals, Chlorine, H2S
  • Chlorine, Odor, Taste
  • Water Leaks (w/ Auto Shut-Off)
  • Filter Lifespan
  • Media
  • Polyphosphate+ GAC&KDF+Carbon
  • Polyphosphate
  • GAC + KDF
  • Coconut Shell Carbon
  • -
  • -
  • Recommended replacement cycle
  • Every 6-12 months
  • Up to 150K Gallons / 12 Months
  • Up to 100K Gallons / 12 Months
  • Up to 100K Gallons / 12 Months
  • -
  • Up to 12 Months
  • Size
  • 4.5” x 20”
  • 4.5” x 20”
  • 4.5” x 20”
  • 4.5” x 20”
  • 3/4” NPT 20 feet sensor x 2
  • -
  • Number of Filters
  • 3
  • 1
  • 1
  • 1
  • -
  • Up to 3
  • Availability In Stock
  • Model WGB32B-KDS
  • Brand iSpring
  • Product Dimensions 24.5"L x 8.0"W x 28.0"H
  • Product Weight 60.0 LB

Manuals

WGB & WDS Series Manual.pdf Download

iSpring vs Other Brands

Feature
NSF/ANSI 58 Certification
Yes (full system certified)
Often partial or none
Verified performance & safety
Filtration Stages
Clear 3/4/5/7 stage options
Usually 4-5 stages
More complete options
Alkaline Remineralization
Available (RCC7AK/RCC7AK-UV)
Rare or expensive add-on
Better taste & pH balance
See-through 1st Stage Housing
Yes, smart flow sensor
Unavailable in most systems
Easy visual inspection
Daily Production
75 GPD (reliable output)
Often lower or overstated
Reliable daily production
Replacement Filters
Widely available & affordable
Hard or harder to find
Lower long-term cost
Installation
DIY friendly, no plumber needed
Can be more complex
Faster & easier set-up
Support & Warranty
Responsive support + solid warranty
Varies widely
Better post-purchase experience
Value for Money
High performance at competitive price
Higher price for similar specs
Better cost-effectiveness

Reviews

  • 5 stars: 9 (90%)
  • 4 stars: 1 (10%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
H
HP
100% Pleased!!

THE PRODUCT: (WGB32B-KDS+WSP50J) I bought this system over a year ago during an excellent sale, but wasn��t able to install until recently. This whole home water filter system is heavy duty and built for serious work! The spin down sediment filter is beefy and all business. The filter mount is also solid and easy to adjust flow direction if necessary (it was for me). Filter housings are also heavy duty, preassembled, and built to last. Instructions were easy to understand and had all the needed information to make the installation as painless as possible. If you're a DYI type, this system was made for you in mind. Installation was straight forward and only required a few plumbing fittings that are needed based on your type of plumbing setup. Follow the instructions and you'll be drinking clean tasty water in no time.THE BUSINESS: The customer service from the Ispring crew has been epic! I had a minor hiccup with an incorrect filter in my order. I contacted the company to see about an exchange, spoke with Sean, and was told that a correct filter would be sent out as soon as I sent in order information to ensure I got the proper filter I was missing. I sent the info in later that evening. The next morning, I received an email from Nick stating the correct filter was to be shipped that day and would be arriving ASAP. These two went above and beyond to make sure that I was 100% satisfied with the product and the company. I am definitely pleased with both!

A
Anonymous
New water filter system.

Bought and installed thissystem 6 months ago. It has completely changed my waters tastes and smell! The first shower made me think - why did I wait so long to put a filter system on my well water supply...

W
Will & Ali
Beyond Expectations!

This review is for the following:iSpring RCC1UP-AK 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization, UV Filter, and Top-Mounted Faucet; purchased 8 Jul 25, installed 17 Jul 25.iSpring WGB32B-KDS 3-Stage Whole House Water Filter with a 1st Stage Anti-Scale Water Filter, 2nd Stage GAC+KDF Heavy Metal Reducing Filter, and a 3rd stage Carbon Block Filter; purchased 20 Jul 25, installed 27 Jul 25.iSpring WSPSL-ARJ-BP Spin Down Sediment Water Filter with Siliphos and Touch-Screen Auto Flushing; purchased 20 Jul 25, installed 27 Jul 25.I wanted to install a drinking water filtration system for several years but never had the time to do it. Now that I��m retired, I decided it was time to finally get it done. Our city water source in Alaska meets ��approved�� levels for water quality, but always has a sulfur smell, and scaling is also a problem. To add to our concerns, we often get sediment when we have earthquakes near our area. I spent a great deal of time reviewing various filtration systems on the internet and Amazon to find the best fit for my needs. Though there are many good systems out there, I chose iSpring because they offered the best options and had the best reviews for filtration systems and customer support.I first purchased and installed the RCC1UP-AK 7-Stage RO/UV drinking water filtration system thinking that was all I wanted. I mounted it in my basement crawl space underneath the refrigerator because of the ease of running wiring for an electrical GFCI receptacle from my garage circuit breaker panel to power the booster pump and UV filter, and because of the way my PEX piping is routed. I��m very qualified to perform this type of work but wouldn��t recommend someone doing the same if not knowledgeable and qualified, that includes splicing in valves and connectors for PEX tubing and installing the filtration system, not to mention any electrical work. It took me two days to get everything installed from running a feed line for the drinking water sink faucet, creating a filter bypass line, splicing into the refrigerator ice maker/drinking water line, running an electrical circuit, and mounting and activating the new RO/UV filtration system.To say my wife and I are pleased with the quality of the drinking water we are getting from our new filtration system would be an understatement. Whether we get the drinking water chilled from the refrigerator faucet or from the new sink faucet, the RO/UV filtered water tastes outstandingly fresh and pure. And the bonus of having the sink drinking faucet is we can now wash our fruits and vegetables in purified water! Should anyone want to know, the TDS readings for our unfiltered water supply runs around 250ppm, but coming from the RO/UV filter, it drops to 12ppm.Because of how well the RO/UV filtration system works, and because we still have the problem of the sulfur smell, scaling, and earthquake caused sediment coming out of the rest of the house faucets, I decided to purchase and install a Whole House Filtration System. Again, I went with iSpring for the same reasons I installed the RO/UV Filtration System. However, I decided to go with their ultimate filters for the 3 stage Filtration System and the Spin-Down Sediment Filter. Again, I installed the system in the crawl space, but next to the water supply entrance and extended the electrical circuit for a second GFCI receptacle to power the Sediment Filter Auto Flush. This time, it took me 4 days to complete the job because I took advantage of the incoming water shutoff to splice in SharkBite Max cold/hot water valves to every feeder line in the house for individual isolation.What a difference having a Whole House Filtration System has made to the quality of our water. It has been just over a week since it went on-line, and the results have been absolutely incredible. We no longer have the sulfur smell, and scaling is completely gone. We haven��t had any local earthquakes yet, but I��m certain we won��t have a sediment problem either.I can also comment on iSpring��s customer service. I took advantage of their free 3-year warranty extension by registering the products on their website. I��m not going to say it was easy to input the information on their support page because it doesn��t seem to function very well. It took me at least 3 tries for each of the Filtration Systems because the website kept giving errors and locking up, but perseverance prevailed, and I was finally able to register all three systems. It didn��t take but a day to hear back from Sean and Nick respectively to let me know that my 3-year warranties have been activated. Though I didn��t speak to them directly, I��m certain I would be very happy talking with them to help me with any issues I might have. Other reviews mention how helpful customer service personnel are or have been and I can believe it.Bottom line, I highly recommend iSpring Filtration Systems for your drinking and/or...

P
Prime Member
4 Stage iSpring Whole House System in Crawl Space

iSpring reviewI just got my ispring whole house filter system installed and working a few weeks ago. After much research and planning. I'm very happy with my decision to go with ispring and do the installation myself.We just moved across country and landed in a spot with not such great water. I always knew I wanted to filter my water no matter where we landed but this water was particulaly bad and we were feeling all the effects of it right away. Right away, our hair felt more rough no matter how much conditioner we used. My teenage daughter's face broke out, hard to know if it was the water but the timing was suspect.I had a full blown professionally done system in my last home and while I loved it, I always struggled to know exaclty how it worked and hated the yearly costs for filter maintenance. I was spending $600+ a year on filter maintenance. Given that I was really hoping I could avoid those things I didn't like about my old system with what ever I decided to do in my new home.Given that still during my research for what I was going to install I contacted 2 local professionals. They were great, had great info but always felt I was going to end up in the same place as last time with those same pitfalls. Not to mention, installation up front costs were $7000 to $10,000. So I kept looking for a solution that I could potentially install and maintain myself. Another thing I wanted with this install was to not have it in my garage so top of my list was to try and get into the crawl space of my new home. Given that, it was going to make it hard for me to install something that sat on the ground in there as the ground is not flat. That also pushed me more toward a system that I could wall mount. That too was a benefit to me. I knew I could easily install and maintain a wall mounted cartridge system. Of all of those types of systems, I found iSpring to have the best prices, good reviews and product lines that were easy to understand. From there I had my water sent to lab to be sure I knew what filters to get. What I found was pretty basic, high chlorine, fluoride and slightly hard mineral content.What I decided to purchase was a 3 stage ispring system and then also add a single cartridge to add a fluoride filter which they are still putting in our city water despite recent findings of lower IQ in children exposed to fluoride. So 4 stages system total. Stage 1 sediment, 2 fluoride Bone Char filter not from iSpring, 3 conditioner-scale, 4 carbon.I had some difficulties getting everything installed and it took me a long time to complete lots of time waiting on all my parts to arrive but once completed I'm happy with what I did. One difficulty I had and would do differently was with the mounting hardware for the 3 stage and single stage filters didn't pair up well and afterwards I decided I wanted to hook all 4 cartridges together. In which case the mounting hardware they sent would not work. I had to work with iSpring support to get the hardware I needed. In the end I had to spend another $100 dollars just to get the correct mounting hardware. If I were to do it again, I should have ordered instead of the 3 stage and single stage, I should have bought 2 double stage systems with the filters I needed. I did get it done eventually.The morning I went to turn it all on after running on bypass for a few days, I happened to go to the sink that morning and was hit with stronger than normal chlorine smells at the kitchen sink. That is something that I see frequently complained about on FB regarding our city water. It was very strong that morning. It smelled like you were standing right in the treatment plant. So right after switching to my new filter setup, I could tell right away that strong smell was now gone. That's great.its been a few weeks now and we are seeing the benefits in other ways too. Not sure if its related or not but my daughter says her face is better too. Showers feel much better to me too. Also I was worried I might see a drop in pressure or flow at the fixtures, so far that I've not noticed any and in fact it might be better as some of the plumbing work I tried to increase flow in some of the plumbing junctions I had under the house.So very happy overall, I saved alot of money doing it myself this time, I know exactly how this one works, I have installed where I want and now have a system I can maintain myself easily.Next step, a crawlspace reverse osmosis system under the kitchen. Later.....

J
Jay
5 Stars �C Outstanding Whole-House Filtration System That Tackles Hard Water and Scale

I��ve been using the iSpring Whole House Water Filter System with my city water supply, and the difference has been remarkable. From day one, I noticed less scale buildup on my fixtures��especially my new black shower heads, which look as pristine as they did on installation day. No more unsightly white spots or mineral residue!Performance & Water Quality? The multi-stage filters (including the spin-down sediment filter, GAC/KDF, and carbon block) do a great job removing sediment and reducing chlorine taste and odors.? The built-in anti-scale feature has clearly helped cut down on hard water deposits across appliances, faucets, and showerheads.Installation & Maintenance? Even though it��s a fairly substantial system, the set-up was straightforward once the mounting bracket was secure. iSpring provides clear instructions, and replacement cartridges are easy to switch out.? The spin-down sediment filter makes routine flushing a breeze��just open the valve to remove trapped particles. This simple step helps keep the other filters performing at their best.? The system feels robust and well-constructed. No leaks or pressure drops since installation.Results? I immediately noticed softer-feeling water for showers and laundry.? My showerheads and faucets no longer develop those stubborn calcium spots.? Dishes come out crystal clear from the dishwasher, with no lingering film.Overall, I��m incredibly happy with how this iSpring system has cut down on hard water problems. If you want to protect your home��s plumbing and keep fixtures looking like new, this filter setup is well worth the investment!

J
Jurgen
Great filter system to give us clear and great tasting water

Very good quality filter system and it has improved the water quality considerably. Robert at iSpring was great help at getting my 3 year extended warranty completed. The scale filter definitely helps with our city water calcium and magnesium content and I was not able to install a water softener in our condo here in Florida due to not having enough space for it. Being a plumber for 40 years, the filter was easy to install and it does not reduce water pressure. I would definitely recommend this filter system to anyone.

P
Peni Ramsey
Incredible results, water quality has completely transformed!

We installed this 3-phase anti-scale water filtration system using 1" PEX-A, and the difference has been night and day. My son handled the installation easily, and we added a bit of silicon to the canister gaskets so everything sealed up airtight with zero leaks.The proof of how well it works is immediately obvious: our first sediment filter was a bright copper color from all the iron and rust it��s pulling out of the water. Even better, that persistent brown ring in our toilet that used to drive us crazy has completely vanished and hasn��t reappeared at all over the last four months.We did have a small hiccup during setup when a bolt snapped while we were turning the housing bracket around. Robert was extremely helpful and made registering our warranty and extended warranty a total breeze.Overall, an amazing system that delivers on its promises. Highly recommended!

K
KM
Good heavy duty system. Works great.

Excellent, heavy duty whole house filtration system. Works great! My plumber commented on how nice this system was once he saw it. Took him the better part of the day to install; he did a few extras for me, once I ran it and let the cloudiness, etc run through, it is ready now. Water tastes very good, no aftertaste. Produces good tasting ice in my ice maker in the fridge too. Won't have to buy those 5 gallon bottles of water anymore!!

A
Anonymous
Works Great!!!

At my plumber's recommendation we installed an iSpring whole-house filter system. After seeing all the debris the filters have removed from our water I'm very happy we decided to install them.I also want to give a special thanks to Nick for his outstanding customer service. We had a minor issue after installation and Nick went above and beyond to make sure everything was resolved quickly and to our complete satisfaction. He was extremely knowledgeable responsive and genuinely helpful throughout the process. He made sure the issue was corrected promptly and followed up to ensure we were happy with the outcome.I can't thank him enough for his excellent support. It's refreshing to receive customer service like this and I highly recommend both the iSpring filter system and the company behind it.

A
Anonymous
Excellent Customer Support

I purchased this product a little while ago and after replacing the filter cartridges I noticed a slight leak from around where the O-rings seal. I determined the leak was from the black cap itself. A replacement part was sent to me immediately after contacting I-Spring. Nick from customer service was outstanding in his support of the product!

FAQs

Will WGB32B-KDS whole house water filtration system decrease water pressure to the house?

It should not. If you experience significant pressure loss, please let us know.

What are the water pressure requirements for the WGB32B-KDS residential water treatment systems to work?

The feed water pressure needs to be between 25 psi and 80 psi.

Is this domestic water purification system suitable for well water?

This whole house water purification system can filter both city water and well water. However, it doesn't filter out viruses and bacteria. For well water, a whole house UV stage (#UVF55FS) is recommended.

Does WGB32B-KDS home water filtration system work on hot water?

No, we do not recommend installing a water filter for home to filter hot water as the high temperature can damage the carbon block filter. The operating temperature for the whole house system is 40 - 100°F.

Support

How to install
How to use
How to troubleshoot
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